Set light output selector to appropriate ' setting – Nikon SB 20 User Manual
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Set light output selector to appropriate
' setting.
Follow the appropriate vertical line upward from the
distance scale window until it intersects with the hori
zontal distance scale indicator line for the selected
aperture. Then follow the diagonal dotted line upward
to determine the correct light output for the aperture
selected. For example, with the film speed set at ISO
too
and the zoom set ring at N, to shoot a subject 3.7m
away at fM.fire the flash at 1/4 light output. Set the light
output selector so the yellow output index shows “1/4”
in the window below.
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